18548131003 has 2 divisors, whose sum is σ = 18548131004. Its totient is φ = 18548131002.

The previous prime is 18548130989. The next prime is 18548131009. The reversal of 18548131003 is 30013184581.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18548131003 - 2¹⁷ = 18547999931 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18548131003.

It is not a weakly prime, because it can be changed into another prime (18548131009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9274065501 + 9274065502.

It is an arithmetic number, because the mean of its divisors is an integer number (9274065502).

Almost surely, 2^18548131003 is an apocalyptic number.

18548131003 is a deficient number, since it is larger than the sum of its proper divisors (1).

18548131003 is an equidigital number, since it uses as much as digits as its factorization.

18548131003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 34.

The spelling of 18548131003 in words is "eighteen billion, five hundred forty-eight million, one hundred thirty-one thousand, three".